Recently I attended two shows about 2 months in between each other. One enterance had a posting, but that was on the way out following the event.
The door I was directed to enter had no posting. (Front, I recall, posting was on the side exit) Not sure if that's changed or as to of why that may be... lack of effort to post additional signs, or a possible "out of sight, out of mind" on their part to please both sides.
While in the area we visited Brit's pub, when asked politely regarding their rather larger than average posting:
"The posting is up so our patrons feel safe from the criminals around here, that's all" - A waitress from Brit's pub (across the street from Orchestra Hall)
I wrote that quote down on a Napkin. I found it interesting.
Best wishes.
